/Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneEvaluationTree.h
Iterate the tree ranges starting at the range that overlaps the specified lower bound
FMovieSceneEvaluationTreeRangeIterator ( const [FMovieSceneEvaluationTree](API\Runtime\MovieScene\Evaluation\FMovieSceneEvaluationTree) & InTree, [TRangeBound](API\Runtime\Core\Math\TRangeBound)< [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) > StartingBound )